#! -*- encoding: utf-8 -*-
print("""The sum of the squares of the first ten natural numbers is,
1^2 + 2^2 + ... + 10^2 = 385

The square of the sum of the first ten natural numbers is,
(1 + 2 + ... + 10)^2 = 55^2 = 3025

Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025 − 385 = 2640.
Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.""")
print("")

sumOfSquares = 0
naturalSum   = 0

for i in range(100+1):
    sumOfSquares += pow(i,2)
    naturalSum += i

naturalSum = pow(naturalSum, 2)

x = naturalSum - sumOfSquares
print(x)


